Former Vice President Joe Biden, 75, said Tuesday it’s not wrong for voters to consider the age of presidential candidates like him who might be considering a 2020 White House run.

“I think age is a totally legitimate thing to raise,” Biden said during a speaker series at the Economic Club of Southwestern Michigan, CNN reported. “I think it’s totally appropriate for people to look at me and say if I were to run for office again, ‘Well, God darn you’re old.’ Well, chronologically I am old.”